Free Tool

Revenue Loss Calculator

Find out how much a slow website is costing your business every month, based on Google's own research.

Your website details

100100,000
%
0.1%15%
$
$50$50,000
0 50 100

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Estimated monthly loss

$0

That's $0 / year left on the table

Bringing your score to 90+ could recover up to $0/month

Current performance
$0
At 90+ score
$0

Based on Google's research: each second of load delay reduces conversions by up to 7%. Apple, Stripe, and major e-commerce sites score 40–80 due to third-party scripts.

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How is this calculated?

This calculator uses conservative, published research, not invented numbers. Here's the methodology behind each figure.

Google Research

1 second of load delay = up to 7% fewer conversions

Google's own data, published in the Think with Google series, found that a 1-second delay in mobile load time can reduce conversion rates by up to 7%. This is the foundational figure the score-based impact tiers are built on.

Portent Data

1s load = 3x higher conversion than 5s load

Portent's research found that sites loading in 1 second convert at roughly 3x the rate of sites loading in 5 seconds. Each additional second of delay compounds the drop, making the difference between a score of 90 and a score of 40 highly significant.

Score Tiers

Conservative impact estimates per PageSpeed band

Rather than using the full 7% figure per second (which would produce dramatic numbers), this calculator applies conservative, blended estimates per score band: 5% at 75–89, 12% at 60–74, 25% at 40–59, 40% at 20–39, and 55% at 0–19. These deliberately understate the potential impact.

Calculation

How your monthly loss is calculated

Monthly revenue = visitors × (conversion rate ÷ 100) × average deal value. Monthly loss = monthly revenue × the impact percentage for your score band. Annual loss = monthly loss × 12. Recovery potential = what you'd earn at a score of 90+.

For Google search rankings and conversion rates, a PageSpeed score of 90+ is the target. Lower scores represent real, measurable revenue drag; the direction is always the same.

These are estimates based on industry research, not guarantees. Your actual impact depends on your industry, traffic quality, and what you're selling. The direction is always the same: faster sites convert better.

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